As a reminder for all employers in Arizona, on May 22, 2025, Arizona Governor Katie Hobbs signed Executive Order 2025-09 to strengthen protections for workers exposed to extreme heat.

The order directs the Arizona Division of Occupational Safety and Health (ADOSH) and the Industrial Commission of Arizona (ICA) to form a Workplace Heat Safety Task Force.

• This group will develop detailed, industry-specific guidelines to help employers prevent heat-related illnesses and injuries.

• While the Executive Order does not immediately change existing regulations, it aims to close enforcement gaps caused by vague standards and reliance on general best practices.

The guidelines, due by December 31, 2025, will clarify:

(1) what constitutes a heat hazard under the federal General Duty Clause and

(2) include practical measures such as access to water, shade, rest breaks, training, and acclimatization.

ADOSH inspectors will continue monitoring heat risks under the existing Heat Stress State Emphasis Program (SEP), and a new recognition program will highlight employers who exceed basic safety requirements.

The finalized guidelines are expected to be implemented before summer 2026.

Business Considerations:

• Implement Core Protections Immediately: Start providing access to water, shade, rest breaks, and heat safety training, even before the guidelines are finalized. These measures are simple, effective, and align with what is expected in the new standards.

• Review and Update Internal Policies: Evaluate your current heat safety procedures and begin aligning them with the anticipated requirements. This includes documenting acclimatization protocols and preparing for industry-specific guidance.

For additional information:

• Arizona Governor Press Release
• Arizona Executive Order 2025-09
• Arizona ADOSH FAQS

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